Global Warming Potential Values The following table includes the 100-year time horizon global warming potentials (GWP) relative to CO2. This table is adapted from the IPCC Fifth Assessment Report, 2014 (AR5)i. The AR5 values are the most recent, but the second assessment report (1995) and fourth assessment report (2007) values are also listed because they are sometimes used for inventory and reporting purposes. For more information, please see the IPCC website (www.ipcc.ch). The use of the latest (AR5) values is recommended. Please note that the GWP values provided here from the AR5 for non-CO2 gases do not include climate-carbon feedbacks. Global warming potential (GWP) values relative to CO2

GWP values for 100-year time horizon Industrial designation or common name

Chemical formula

Second Assessment Report (SAR)

Fourth Assessment Report (AR4)

Fifth Assessment Report (AR5)

Carbon dioxide

CO2

1

1

1

Methane

CH4

21

25

28

Nitrous oxide

N2O

310

298

265

Substances controlled by the Montreal Protocol

 

CFC-11

CCl3F

3,800

4,750

4,660

CFC-12

CCl2F2

8,100

10,900

10,200

CFC-13

CClF3

14,400

13,900

CFC-113

CCl2FCClF2

6,130

5,820

CFC-114

CClF2CClF2

 

10,000

8,590

CFC-115

CClF2CF3

 

7,370

7,670

Halon-1301

CBrF3

7,140

6,290

Halon-1211

CBrClF2

 

1,890

1,750

Halon-2402

CBrF2CBrF2

 

1,640

1,470

Carbon tetrachloride

CCl4

1,400

1,730

Methyl bromide

CH3Br

5

2

Methyl chloroform

CH3CCl3

146

160

  4,800

5,400

1,400

  100

 

 

Industrial designation or common name

GWP values for 100-year time horizon Second assessment report (SAR)

Chemical formula

Fourth Assessment Report (AR4)

Fifth Assessment Report (AR5)

HCFC-21

CHCl2F

HCFC-22

CHCLF2

1,500

1,810

1,760

HCFC-123

CHCl2CF3

90

77

79

HCFC-124

CHClFCF3

470

609

527

HCFC-141b

CH3CCl2F

600

725

782

HCFC-142b

CH3CClF2

1,800

2,310

1,980

HCFC-225ca

CHCl2CF2CF3

 

122

127

HCFC-225cb

CHClFCF2CClF2

 

595

525

 

148

 

Hydrofluorocarbons (HFCs)

 

HFC-23

CHF3

11,700

14,800

12,400

HFC-32

CH2F2

650

675

677

HFC-41

CH3F2

150

HFC-125

CHF2CF3

2,800

HFC-134

CHF2CHF2

1000

HFC-134a

CH2FCF3

1,300

HFC-143

CH2FCHF2

300

HFC-143a

CH3CF3

3,800

HFC-152

CH2FCH2F

HFC-152a

CH3CHF2

HFC-161

CH3CH2F

HFC-227ea

CF3CHFCF3

HFC-236cb

CH2FCF2CF3

 

1,210

HFC-236ea

CHF2CHFCF3

 

1,330

HFC-236fa

CF3CH2CF3

6,300

HFC-245ca

CH2FCF2CHF2

560

HFC-245fa

CHF2CH2CF3

1,030

858

HFC-365mfc

CH3CF2CH2CF3

794

804

HFC-43-10mee

CF3CHFCHFCF2CF3

1,640

1,650

116 3,500

3,170 1,120

1,430

1,300 328

4,470

4,800 16

  140

124

138 4

  2,900

1,300

3,220

9,810

3,350

8,060 716

 

 

GWP values for 100-year time horizon

Industrial Chemical formula designation or common name Perfluorinated compounds

Second assessment report (SAR)

Fourth Assessment Report (AR4)

Fifth Assessment Report (AR5)

23,900

22,800

23,500

17,200

16,100

Sulfur hexafluoride

SF6

Nitrogen trifluoride

NF3

PFC-14

CF4

6,500

7,390

6,630

PFC-116

C2F6

9,200

12,200

11,100

PFC-218

C3F8

7,000

8,830

8,900

PFC-318

c-C4F8

8,700

10,300

9,540

PFC-31-10

C4F10

7,000

8,860

9,200

PFC-41-12

C5F12

7,500

9,160

8,550

PFC-51-14

C6F14

7,400

9,300

7,910

PCF-91-18

C10F18

 

>7,500

7,190

Trifluoromethyl sulfur pentafluoride

SF5CF3

 

17,700

17,400

Perfluorocyclopropane

c-C3F6

 

 

9,200

 

Fluorinated ethers

 

HFE-125

CHF2OCF3

 

14,900

12,400

HFE-134

CHF2OCHF2

 

6,320

5,560

HFE-143a

CH3OCF3

 

756

523

HCFE-235da2

CHF2OCHClCF3

 

350

491

HFE-245cb2

CH3OCF2CF3

 

708

654

HFE-245fa2

CHF2OCH2CF3

 

659

812

HFE-347mcc3

CH3OCF2CF2CF3

 

575

530

HFE-347pcf2

CHF2CF2OCH2CF3

 

580

889

HFE-356pcc3

CH3OCF2CF2CHF2

 

110

413

HFE-449sl (HFE-7100)

C4F9OCH3

 

297

421

HFE-569sf2 (HFE-7200)

C4F9OC2H5

 

59

57

HFE-43-10pccc124 (H-Galden 1040x)

CHF2OCF2OC2F4OCHF2  

1,870

2,820

HFE-236ca12 (HG-10)

CHF2OCF2OCHF2

2,800

5,350

 

 

 

Industrial designation or common name

GWP values for 100-year time horizon Second assessment report (SAR)

Chemical formula

Fourth Fifth Assessment Assessment Report (AR4) Report (AR5)

HFE-338pcc13 (HG-01)

CHF2OCF2CF2OCHF2

 

HFE-227ea

CF3CHFOCF3

 

6,450

HFE-236ea2

CHF2OCHFCF3

 

1,790

HFE-236fa

CF3CH2OCF3

 

979

HFE-245fa1

CHF2CH2OCF3

 

828

HFE 263fb2

CF3CH2OCH3

 

 

1

HFE-329mcc2

CHF2CF2OCF2CF3

 

 

3,070

HFE-338mcf2

CF3CH2OCF2CF3

 

 

929

HFE-347mcf2

CHF2CH2OCF2CF3

 

 

854

HFE-356mec3

CH3OCF2CHFCF3

 

 

387

HFE-356pcf2

CHF2CH2OCF2CHF2

 

 

719

HFE-356pcf3

CHF2OCH2CF2CHF2

 

 

446

HFE 365mcf3

CF3CF2CH2OCH3

 

 

<1

HFE-374pc2

CHF2CF2OCH2CH3

 

 

627

10,300

9,710

1,500

2,910

Perfluoropolyethers PFPMIE

CF3OCF(CF3)CF2OCF2OCF3

 

Hydrocarbons and other compounds - direct effects Chloroform

CHCl3

4

Methylene chloride

CH2Cl2

9

Methyl chloride

CH3Cl

 

Halon-1201

CHBrF2

 

16 8.7

9

13

12 376

IPCC data sources for more information:  AR4 values: https://www.ipcc.ch/publications_and_data/ar4/wg1/en/ch2s2-10-2.html  AR5 values: https://www.ipcc.ch/pdf/assessmentreport/ar5/wg1/WG1AR5_Chapter08_FINAL.pdf (p. 73-79)                                                              i

 Myhre, G., D. Shindell, F.‐M. Bréon, W. Collins, J. Fuglestvedt, J. Huang, D. Koch, J.‐F. Lamarque, D. Lee, B. Mendoza, T. Nakajima, A. Robock, G.  Stephens, T. Takemura and H. Zhang, 2013: Anthropogenic and Natural Radiative Forcing. In: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Stocker, T.F., D. Qin, G.‐K.  Plattner, M. Tignor, S.K. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P.M. Midgley (eds.)]. Cambridge University Press, Cambridge, United Kingdom  and New York, NY, USA. 

 

Global Warming Potential Values - GHG Protocol

148. HCFC-22. CHCLF2. 1,500. 1,810. 1,760. HCFC-123. CHCl2CF3. 90. 77. 79. HCFC-124. CHClFCF3. 470. 609. 527. HCFC-141b. CH3CCl2F. 600. 725. 782.
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